What topics do I think are most important? I think the basic principles behind RSA and the ElGamal encryption systems, as well as the principles of public key cryptography in general are important. Also, the potential weaknesses of these systems are rather important to understand.
What kind of questions do I expect? Perhaps using simplified versions of the cryptosystems we have studied recently, as well as applying the number theory we have learned behind the systems. I can also see primality testing being used.
What do I need to work on understanding? I need to remember the continued fraction attack, as well as our methods for computing discrete logarithms. I also need help with primality testing.
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